6 From which some having swerved have turned aside unto vain jangling;

7 Desiring to be teachers of the law; understanding neither what they say, nor whereof they affirm.

Galatians 1:8-9
8 But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.

9 As we said before, so say I now again, if any man preach any other gospel unto you than that ye have received, let him be accursed.

Romans 10:17
17 So then faith cometh by hearing, and hearing by the word of God.

Revelation 22:18-19
18 For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book:

19 And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book.

Revelation 1:3
3 Blessed is he that readeth, and they that hear the words of this prophecy, and keep those things which are written therein: for the time is at hand.